Seth Zwillenberg, MD
NPI 1952372906 · Otolaryngology Physician · Philadelphia, PA
Enrolled with Medicare as Practitioner - Otolaryngology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Seth Zwillenberg, MD is a Otolaryngology Physician provider in Philadelphia, PA (NPI 1952372906).
Provider details
- NPI number
- 1952372906
- Entity type
- Individual
- Primary specialty
- Otolaryngology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- MD027425 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
254 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Diagnostic Exam of Nasal Passages Using an Endoscope31231 | 53 | $206 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 53 | $97 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 36 | $139 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 34 | $182 |
| Diagnostic Exam of Voice Box Using a Flexible Endoscope31575 | 32 | $140 |
| Removal of Impacted Ear Wax69210 | 32 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Famotidine | 208 | 63 |
| Fluticasone Propionate | 176 | 73 |
| Omeprazole | 110 | 35 |
| Ipratropium Bromide | 63 | 15 |
| Pantoprazole Sodium | 56 | 15 |
| Azelastine Hcl | 43 | 15 |
| Ofloxacin | 22 | 12 |
| Fluocinolone Acetonide Oil |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$739 across 20 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-29
- Last updated
- 2007-07-08
Frequently asked questions
- What is Seth Zwillenberg's NPI number?
- Seth Zwillenberg's National Provider Identifier (NPI) is 1952372906, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Seth Zwillenberg's specialty?
- Seth Zwillenberg is listed in the NPPES registry with a primary specialty of Otolaryngology Physician (Allopathic & Osteopathic Physicians).
- Where is Seth Zwillenberg located?
- Seth Zwillenberg's practice location on file with NPPES is 1920 Chestnut St, Philadelphia, PA 19103-4634.
- What is Seth Zwillenberg's phone number?
- The practice phone number listed in the NPPES registry for Seth Zwillenberg is (215) 561-2546.
- Does Seth Zwillenberg accept Medicare?
- Seth Zwillenberg is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Seth Zwillenberg's NPI active?
- Yes — Seth Zwillenberg's NPI (1952372906) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.